体节

FOXC2 protein and mRNA were extensively expressed in pregnant 40 day embryonic somite and neural tube mesoderm which would form cardiovascular and axial skeleton primordia, especially strong expressed in the cells of mesenchyme surrounding notochord and dorsal aorta approaching the head.

这个基因广泛表达在孕40天胚胎体节和神经管周围未来分化为心血管和中轴骨骼始基的中胚层，靠近头部围绕脊索和背主动脉的间充质细胞核中表达强烈。

MethodsNeural tubes isolated from the region between midotic placode and third somite of mouse embryo at ED 8.5d were cultured in DMEM/F12 serum-free medium containing basic fibroblast growth factor and epidermal growth factor. The cell cycle of CNCCs was analyzed with flow cytometry, the proliferation capability was determined by MTT method, AP-2α expression was detected by immunocytochemistry as a biological marker of cardiac neural crest cells. The features of migration, multi-directional differentiation were observed as well.

材料与方法成年2月龄C57／BL6小鼠交配，取ED8.5d小鼠胚胎枕中部至第3体节神经管，应用包含碱性纤维生长因子和表皮细胞生长因子的无血清培养基培养，利用MTT法检测细胞增殖能力，利用流式细胞仪检测细胞周期，采用转录激活因子2α(AP-2α，Activator protein-2α)作为其生物学标记物，观察其增殖状况、细胞周期、迁移、分化等生物学特性。

The net result is to increase dpp activity on the dorsal side, and to repress it on the ventral side, of the embryo.

我们最关心的是三个胸部的和八个腹部的体节，其发育的大部分情况已经搞清。

The optimal entrance point mostly locate at the root of accessoryprocess which adjacent to the mamillary process from L1 to L4, Theadjustable range of entrance points of the 4 segments almost cover theaccessory process, But at L5, The optimal entrance point is much moreoutside away from the accessory process, just at the middle of thetransverse process and the adjustable range of entrance points islimited.

这与钉尾间距的明显变化相一致，手术时应注意调整螺钉钉尖内偏角度观察椎弓根螺钉进钉点发现内外侧螺钉进钉点与内上、外上螺钉进钉点构成接近矩形的梯形区域，最佳进钉点居于内外进钉点中部。L1到L4最佳进钉点位于副突根部靠近乳突处，随着椎体节段下降，进钉点逐渐移向外侧，L1最佳进钉点基本在副突根部骨嵴内侧缘，L2、L3最佳进钉点基本在副突根部骨嵴上，L4最佳进钉点基本在副突根部骨嵴外侧缘。L1到L4可选进钉点范围几乎均包含副突骨嵴。L5最佳进钉点则明显偏外，多数位于副突根部与横突外端连线的中内1／3。

The condition of having the body divided into metameres, exhibited in most animals only in the early embryonic stages of development.

位变异构身体被分成一系列相同体节的状况，在大多数动物中仅存于胚胎发育的早期阶段

Zoology having the body divided into successive metameres or segments, as in earthworms or lobsters.

身体分成若干连续的体节或部分，如蚯蚓或龙虾。

This is because of the somites at the back of the embryo that " somewhat resemble teethmarks in a chewed substance."

这是因为胚胎背部的体节&有点像咀嚼过物质上的齿痕&。

We can see here the somites at the back of the embryo that look like teeth marks.

此处我们可以看出胚胎背部状似齿痕的体节

The embryo at this stage acquires the appearance of a chewed substance, because the somites at the back of the embryo somewhat resemble teeth marks in a chewed substance.

此阶段的胚胎外观像是咀嚼过的物质，因为胚胎背部的体节有点像咀嚼过物质上的齿痕。

During the early stage of embryogenesis, FoxD1 was mainly expressed in the somites, kidney progenitor cells, brain progenitor cells and intestine.

在胚胎发育早期，FoxD3在未迁移神经嵴前体细胞、体节、耳后的基板、头部和躯干的神经嵴细胞、松果体中表达。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。